Turbine.



C. W. BAKE.

TUBBINL. APPLICATION FILED AUGA, 1913.v

1,098,3 1 9. Patented-May 26, 1914.

UNTTED STATES PATENT ernten.

CHARLES W. BAKE, 0F CHICAGO, ILLINOIS,ASSIGNOR TO PYLE-NATIONAL'ELECTRIC HEADLIGHT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEWJERSEY.

TURBINE.

Loasie.

. Specification of Letters Patent.

Ia-tentedMay 26, 1914.

Application led August 4, 1913. Serial No. 782,978.

To all 'whom it may concern.'

Be it known that I, CHARLES W. DAKE, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Turbines, of which thefollowing is a specification.

My invention relates to improvements in turbines and is illustrated inthe accompanying drawing which shows diagrammatically a sectional viewwith parts broken away and parts omitted of a turbine embodying myinvention.

Like parts are indica-ted by the same lettersin the figure.

The turbine housing A completed by a cap or end A1 contains the bearingsA2 in which rotate the shaft A3. The hub B on the shaft A3 carries abody B1 upon which are mounted the turbine buckets B2 held in positionby lugs B3 and rings B4. A steam nozzle C fed through a stem passage C1with steam from any suitable source of supply not indicated feeds thesteam into the buckets and rotates the turbine.

D is a bearing or guard ring projecting inwardly from the housing A andclosely surrounding the outwardly extended edge or rim Dl of the bodyB1. This/rim D1 in the presentinstance extends out beyond the edge ofthe buckets although it might not extend so far, in which case the ledgeor ring D would necessarily extend farther inward to bring it into thetwo parts in the same relative position. The purpose of parts D and D1is obvious. Bearings such as these are designed have high speed andheavy duty. They are frequently improperly cared for and not adequatelyinspected. It often happens that the bearings wear out. turbine wheelthen gets o center and there is a possibility that the buckets willscrape on the steam nozzle thus breaking or bendi ing the buckets,cutting down the efficiency ofthe machine if not actually stopping it-The' and adding greatly to the cost of repair. In

my improved form, when this wear of the bearings take place, the body orbucket Wheel will be still centered within reasonable limits by thecollar D supporting the bucket wheel as the periphery D1 thereof comesvin contact therewith, thus Wearing away or breaking up of the buckets isentirely prevented.

It will be evident that my invention is not to be limited to any preciseor particular arrangement of parts. It is conceivablethat the supportingring in the housing might be differently positioned or diiferentlysized,

and it is suiiicient that it be of such size as to adequately supportthe, rotor and that the rotor has a cylindrical surface concentrictherewith for the purpose of coming into Contact therewith at theappropriate time, and I wish therefore that my drawing be regai-ded asin a sense diagrammatic.

I claim:

1. In a turbine having a rotor, buckets, I

thereon and a fluid supply nozzle, a housing, the clearance between saidhousing and said rotor being less than the clearance bet-Ween saidnozzle and the buckets` 2. 4A turbine comprising a housing, a ringthereabout, a rotor body, a row of buckets projecting therefrom and anozzle, the clearance between the nozzle and the buckets being greaterthan the clearance between the ring and the body.

3. A turbine having a rotor, buckets thereon, a fluid supply nozzle, anda guard in opposition to said rotor, tlic clearance between said guardandthe rotor being less than the clearance between the nozzle and thebuckets.

In testimony whereof, I affix my signature in thc presence of twowitnesses this 26th day of July, 1913. l

CHARLES IV. DAKE lVit-nesses LAUREL M. DonnMUs, Minnie M. 'LINDENAU

